1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mixas84 [53]
3 years ago
7

16.

Chemistry
1 answer:
Mariana [72]3 years ago
5 0

Answer:

P(O₂) = 287.41 mmHg

P(O₂) = 413.59 mmHg

Explanation:

Given data:

Total pressure = 701 mmHg

Mass of methane = 2.75 g

Mass of oxygen = 3.45 g

Partial pressure of each gas = ?

Solution:

Number of moles of methane:

Number of moles = mass/molar mass

Number of moles = 2.75 g/ 16 g/mol

Number of moles = 0.17 mol

Number of moles of oxygen:

Number of moles = mass/molar mass

Number of moles = 3.45 g/ 32 g/mol

Number of moles = 0.12 mol

Total number of moles = 0.12 mol + 0.17 mol = 0.29 mol

Partial pressure of oxygen:

P(O₂)  = [ moles of oxygen / total moles ] × total pressure

P(O₂) = [0.12  / 0.29 ] × 701 mmHg

P(O₂) = 0.41 × 701 mmHg

P(O₂) = 287.41 mmHg

Partial pressure of methane:

P(O₂)  = [ moles of oxygen / total moles ] × total pressure

P(O₂) = [0.17  / 0.29 ] × 701 mmHg

P(O₂) = 0.59 × 701 mmHg

P(O₂) = 413.59 mmHg

You might be interested in
True or False
alexdok [17]
1. True 2. False 3.false 4. False 5. True
5 0
3 years ago
Which statement best describes insoluble substances?
Maksim231197 [3]

Answer:

Water does not remain when an insoluble substance is added

7 0
3 years ago
Read 2 more answers
how much water should be added to 1 gallon of pure antifreeze to obtain a solution that is 60% antifreeze?
antoniya [11.8K]
1 gallon of antifreeze = 60% of mixture. Total mixture:
Vm = 1/0.6
= 1.67 gallons

Volume of water = total vol - antifreeze vol
= 1.67 - 1
= 0.67 gallon of water
7 0
3 years ago
Which of the following BEST describes the process of evolution by natural selection?
svlad2 [7]

Answer:

<em>The correct option is B)  a gradual change of the traits of a species over time</em>

Explanation:

The theory of natural selection explains the gradual changes which occur in the population of a species over time. According to natural selection, those organisms which are better adapted to live in an environment survive and pass on their traits to their offsprings. As a result, the traits of a species tend to change over time through the process of evolution. Evolutionary changes do not occur rapidly, instead, they can take many years to occur.

4 0
3 years ago
&amp; Write five examples of liquid to liquid mixture.​
wolverine [178]

Answer:

huikl

daffafafafafa

7 0
3 years ago
Other questions:
  • If there is initially 1.334 m o2, how long will it take for the o2 concentration to reach 0.443 m?
    5·1 answer
  • Which law states that the volume of a gas is proportional to the miles of the gas when pressure and temperature are kept constan
    6·1 answer
  • Butane (c4 h10(g), hf = –125.6 kj/mol) reacts with oxygen to produce carbon dioxide (co2 , hf = –393.5 kj/mol ) and water (h2 o,
    14·2 answers
  • What can you infer from the fact that metals are good conductors of electricity?
    5·2 answers
  • HURRY PLS HELP PLEASE: A 40.0-L sample of fluorine is heated from 363 Kelvin to 459 K. What volume will the sample occupy at the
    5·1 answer
  • The image above shows a type of metamorphic rock called gneiss. Gneiss is characterized by alternating bands of light and dark m
    14·1 answer
  • Write the balanced NET IONIC equation for the reaction that occurs when perchloric acid and calcium hypochlorite are combined. I
    14·1 answer
  • Please help as soon as possible!!!
    13·1 answer
  • Help me out ? I'm not sure of my answer.<br>​
    13·1 answer
  • In a tissue that metabolizes glucose via the pentose phosphate pathway, C-1 of glucose would be expected to end up principally i
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!